Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759004AbZFXLj1 (ORCPT ); Wed, 24 Jun 2009 07:39:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757598AbZFXLgj (ORCPT ); Wed, 24 Jun 2009 07:36:39 -0400 Received: from smtp.nokia.com ([192.100.122.230]:52701 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750888AbZFXLgh (ORCPT ); Wed, 24 Jun 2009 07:36:37 -0400 From: Imre Deak To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Krzysztof Helt , Antonino Daplas , Tony Lindgren , Tomi Valkeinen Subject: [PATCH 04/20] omapfb: Add support for the 2430SDP LCD Date: Wed, 24 Jun 2009 14:33:29 +0300 Message-Id: <9cecdc5077b72042551eb8e3dc96911e9f4fa3fd.1245842329.git.imre.deak@nokia.com> X-Mailer: git-send-email 1.6.3.2 In-Reply-To: References: <1245843225-1036-1-git-send-email-imre.deak@nokia.com> <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> <5cf7e298c3b70ad6e07d34034cc901689445e978.1245842329.git.imre.deak@nokia.com> In-Reply-To: <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> References: <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> X-OriginalArrivalTime: 24 Jun 2009 11:35:58.0388 (UTC) FILETIME=[F1781740:01C9F4BF] X-Nokia-AV: Clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7135 Lines: 245 From: Hunyue Yau Add glue to control the 2430SDP LCD as a frame buffer device using the existing dispc.c driver under omapfb. Fixed-by: Kevin Hilman Fixed-by: Sergio Aguirre Fixed-by: Francisco Alecrim Fixed-by: Tony Lindgren Fixed-by: David Brownell Signed-off-by: Hunyue Yau Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren Signed-off-by: Imre Deak Acked-by: Krzysztof Helt --- drivers/video/omap/Makefile | 1 + drivers/video/omap/lcd_2430sdp.c | 198 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 199 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap/lcd_2430sdp.c diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index 2bf94ad..7a37b03 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile @@ -26,6 +26,7 @@ objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o +objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o omapfb-objs := $(objs-yy) diff --git a/drivers/video/omap/lcd_2430sdp.c b/drivers/video/omap/lcd_2430sdp.c new file mode 100644 index 0000000..284cfce --- /dev/null +++ b/drivers/video/omap/lcd_2430sdp.c @@ -0,0 +1,198 @@ +/* + * LCD panel support for the TI 2430SDP board + * + * Copyright (C) 2007 MontaVista + * Author: Hunyue Yau + * + * Derived from drivers/video/omap/lcd-apollon.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91 +#define SDP2430_LCD_PANEL_ENABLE_GPIO 154 +#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24 +#define SDP3430_LCD_PANEL_ENABLE_GPIO 28 + +static unsigned backlight_gpio; +static unsigned enable_gpio; + +#define LCD_PANEL_BACKLIGHT_GPIO 91 +#define LCD_PANEL_ENABLE_GPIO 154 +#define LCD_PIXCLOCK_MAX 5400 /* freq 5.4 MHz */ +#define PM_RECEIVER TWL4030_MODULE_PM_RECEIVER +#define ENABLE_VAUX2_DEDICATED 0x09 +#define ENABLE_VAUX2_DEV_GRP 0x20 + + +#define t2_out(c, r, v) twl4030_i2c_write_u8(c, r, v) + + +static int sdp2430_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + if (machine_is_omap_3430sdp()) { + enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO; + backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO; + } else { + enable_gpio = SDP2430_LCD_PANEL_ENABLE_GPIO; + backlight_gpio = SDP2430_LCD_PANEL_BACKLIGHT_GPIO; + } + + gpio_request(enable_gpio, "LCD enable"); /* LCD panel */ + gpio_request(backlight_gpio, "LCD bl"); /* LCD backlight */ + gpio_direction_output(enable_gpio, 0); + gpio_direction_output(backlight_gpio, 0); + + return 0; +} + +static void sdp2430_panel_cleanup(struct lcd_panel *panel) +{ + gpio_free(backlight_gpio); + gpio_free(enable_gpio); +} + +static int sdp2430_panel_enable(struct lcd_panel *panel) +{ + u8 ded_val, ded_reg; + u8 grp_val, grp_reg; + + if (machine_is_omap_3430sdp()) { + ded_reg = TWL4030_VAUX3_DEDICATED; + ded_val = ENABLE_VAUX3_DEDICATED; + grp_reg = TWL4030_VAUX3_DEV_GRP; + grp_val = ENABLE_VAUX3_DEV_GRP; + + if (omap_rev() > OMAP3430_REV_ES1_0) { + t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED, + TWL4030_VPLL2_DEDICATED); + t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP, + TWL4030_VPLL2_DEV_GRP); + } + } else { + ded_reg = TWL4030_VAUX2_DEDICATED; + ded_val = ENABLE_VAUX2_DEDICATED; + grp_reg = TWL4030_VAUX2_DEV_GRP; + grp_val = ENABLE_VAUX2_DEV_GRP; + } + + gpio_set_value(enable_gpio, 1); + gpio_set_value(backlight_gpio, 1); + + if (0 != t2_out(PM_RECEIVER, ded_val, ded_reg)) + return -EIO; + if (0 != t2_out(PM_RECEIVER, grp_val, grp_reg)) + return -EIO; + + return 0; +} + +static void sdp2430_panel_disable(struct lcd_panel *panel) +{ + gpio_set_value(enable_gpio, 0); + gpio_set_value(backlight_gpio, 0); + if (omap_rev() > OMAP3430_REV_ES1_0) { + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED); + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP); + msleep(4); + } +} + +static unsigned long sdp2430_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel sdp2430_panel = { + .name = "sdp2430", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC, + + .bpp = 16, + .data_lines = 16, + .x_res = 240, + .y_res = 320, + .hsw = 3, /* hsync_len (4) - 1 */ + .hfp = 3, /* right_margin (4) - 1 */ + .hbp = 39, /* left_margin (40) - 1 */ + .vsw = 1, /* vsync_len (2) - 1 */ + .vfp = 2, /* lower_margin */ + .vbp = 7, /* upper_margin (8) - 1 */ + + .pixel_clock = LCD_PIXCLOCK_MAX, + + .init = sdp2430_panel_init, + .cleanup = sdp2430_panel_cleanup, + .enable = sdp2430_panel_enable, + .disable = sdp2430_panel_disable, + .get_caps = sdp2430_panel_get_caps, +}; + +static int sdp2430_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&sdp2430_panel); + return 0; +} + +static int sdp2430_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int sdp2430_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int sdp2430_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver sdp2430_panel_driver = { + .probe = sdp2430_panel_probe, + .remove = sdp2430_panel_remove, + .suspend = sdp2430_panel_suspend, + .resume = sdp2430_panel_resume, + .driver = { + .name = "sdp2430_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init sdp2430_panel_drv_init(void) +{ + return platform_driver_register(&sdp2430_panel_driver); +} + +static void __exit sdp2430_panel_drv_exit(void) +{ + platform_driver_unregister(&sdp2430_panel_driver); +} + +module_init(sdp2430_panel_drv_init); +module_exit(sdp2430_panel_drv_exit); -- 1.6.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/